From: Ingraham, Andrew (Andrew.Ingraham@compaq.com)
Date: Tue Dec 21 1999 - 11:25:29 PST
>There is another point over here, which was sort of discussed here
>on the list which is , WHAT IS DIFFERENTIAL SIGNALLING?
>CML/pCML have "both" the currents (diff. magnitude) sinking "into" the
>ECL/pECL have "both" the currents (diff. magnitude) sourceing "out of"
>LVDS fits into my concept of diffreential that the same magnitude current
>flows in both the wires/tracks but in opposite direction.One sourcing
>and other sinking.
The main difference is the DC common-mode current. If you removed the DC
component, the switching currents in CML/ECL become fully complementary or
On the other hand, the drivers are asymmetrical, so rise/falltimes might not
**** To unsubscribe from si-list: send e-mail to firstname.lastname@example.org. In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu/si-list
This archive was generated by hypermail 2b29 : Tue Feb 29 2000 - 11:39:10 PST